background image

 

 

Brobo Group 

 

 

 

brobo.com.au 

CHAPTER 3 - Main Functions & Operation of the Machine 

 

Figure 4. 

Pedestal Grinder Main Components 

3.1.1.  Motor  

 
Available in 3 phases 415 volts, the 2.4KW motor is the heart of the grinder unit that produces 2070 rpm toward the 
spindles & is operating at suitable speeds for grinding & buffing applications. 
 

3.1.2.  Safety Eye Shields 

 
The reinforced glass safety eye shield serves to protect the user from any debris & particles that might be dislodged 
from the grinding/buffing process.  The bracket mountings also allow the user to adjust the position of the eye shield 
to suit various workpiece. 
 

3.1.3.  Grinding Wheel 

 
Rated at A24/46 Grit, the general purpose grinding wheels are provided on all Brobo pedestal grinding machines.  
It is advisable for all operators that grinding/buffing wheels are available for purchase for various applications from 
reputable hardware stores.  Also note that tapered buff & wire adaptors are available for purchase from Brobo, sold 
separately.   
 

3.1.4.  Toolrest 

 
As implied, the Toolrest provides a stable platform in which the user can rest any tool piece for resharpening.  The 
height & position of the Toolrest can be moved accordingly via the adjustable bolts provided.   
 

3.1.5.  Emergency Stop Button 

 
In compliance with Australian Standards & ISO 9001, all Brobo grinding/buffing machines are now provided with 
emergency STOP button for ease of access during an emergency.  

1.  Motor 
2.  Safety Eye Shields 
3.  Grinding Wheel 
4.  Toolrest 
5.  Emergency Stop Button 
6.  Water Pot 
 

Summary of Contents for 3220020

Page 1: ... www brobo com au PRODUCT AND MAINTENANCE MANUAL PEDESTAL GRINDER PG350 Precision Drilling Machines Tapping Machines Multi Head Drills Tool Grinders Tool Post Grinders Machine Vices Special Production Equipment Accessories Riveting Machines Pedestal Grinders Metal Cutting Saws Linishers A C N 098 264 316 A B N 42 098 264 316 ...

Page 2: ...eral Requirements 2 3 Advice for the Operator 2 4 Machine Safety Devices 2 4 1 Reference Standards CHAPTER 3 Main Functions Operation of the Machine 3 1 Main Features 3 2 Preparation for Operation 3 3 Operation Recommendations CHAPTER 4 Drawings Layouts Assembly Spare Parts 4 1 Spare Parts 4 2 PG350 Pedestal Grinder Main Dimensions 4 3 PG350 Pedestal Grinder Assembly CHAPTER 5 Maintenance Selectio...

Page 3: ...com au TECHNICAL SPECIFICATION Packaged Dimensions 114cm x 114cm x 130cm Weight PG350 255 kg MACHINE SPECIFICATION MOTOR RATING kW HP V PH DESCRIPTION WHEEL SPEED PG350 3220020 2 4kW 2 9HP Pedestal Grinder 1770 2070 RPM ...

Page 4: ...ness around the body of the unit while being mindful that equal weight distribution is required to prevent it from tipping Raise the pedestal grinder slide the pallet away from the machine and re lower the grinder to the final location Prior to powering up the grinder place the desired wheel buff mop onto the machine spindles Note that if the bore sizes on the grinding wheels and or buffering mops...

Page 5: ...o greater than 900kPa 9 Bar Ambient Temperature From 10 C to 50 C Relative Humidity Not more than 90 Lighting More than 500 LUX 1 3 Anchoring the grinder unit Figure 2 Anchoring the grinder unit Top View WARNING OPERATING VOLTAGE VARIATION Each grinder model has an inbuilt safety system to protect it against voltage variations However for the machine to perform efficiently ensure that the grinder ...

Page 6: ...itted with a suitable approved four pin plugs i e three phase earthing not provided Figure 3 2 Connection for 4 CORE Wire System with Neutral 3 Phase c Check the power supplied motor specifications before plugging in the machine Check the terminal connection on dual voltage motor terminal box connect it accordingly to the corresponding voltage supply d If the dual motor is requested the motor is a...

Page 7: ...r by the EEC DIRECTIVE ON MACHINERY No 98 37 CE Danger Zone any zone in and or around a machine in which the presence of a person constitutes a risk to the safety health of that person Person Exposed any person finding him or herself either completely or partly in a danger zone Operator the person or persons are given the responsibility of installing operating adjusting maintaining cleaning repair...

Page 8: ...cerned For this reason the user of the machine must provide adequate lighting in the working area to eliminate areas of shadow whilst also prevent dazzling illumination sources Reference standard ISO 8995 2002 Lighting of Indoor Workplaces 2 2 2 Connection Check that the power supply cables compressed air supply if applicable coolant system complies with are operating within the acceptable range o...

Page 9: ...instructions must be observed during all procedures PRECAUTIONS AGAINST ACCIDENTS Comply with all instructions on the manuals for preventing accidents The machines comply with international standards ISO 9001 MAINTENANCE CLEANING The maintenance cleaning should be done by the qualified person COPYRIGHT The copy or simulation of our machines or some parts is not allowed without written permission f...

Page 10: ...upply to the machine before carrying out any maintenance work or adjustments This includes cases of abnormal operations of the machine The operator MUST NOT conduct any risky operations or those not required for the grinding in course Never move the grinder while the machine is operating Always keep the workplace are as clean as possible Remove equipment tools or any other objects from the grindin...

Page 11: ... the grinder also complies with the Australian Standards regarding the safeguarding general requirements for electrical equipment 2 4 1 Reference Standards MACHINE SAFETY EEC Directive No 98 37 CE Machines Directive EEC Directive No 91 368 94 68 Amends sections of EEC Directive No 98 37 CE relating to machine safety EEC Directive No 73 23 Low Voltage Directive AS4024 1 1996 Safeguarding of Machine...

Page 12: ...e general purpose grinding wheels are provided on all Brobo pedestal grinding machines It is advisable for all operators that grinding buffing wheels are available for purchase for various applications from reputable hardware stores Also note that tapered buff wire adaptors are available for purchase from Brobo sold separately 3 1 4 Toolrest As implied the Toolrest provides a stable platform in wh...

Page 13: ...oolrest maneuver it to the desired grinding position 4 Check that the safety eye shield is directly positioned to deflect swarf any dislodged particles 5 Turn the machine on Proceed by slowly easing the workpiece into the grinding wheel Apply a steady even pressure feed downward towards the wheel During grinding use a traversing motion across the face of the grinding wheel up to within the edge of...

Page 14: ...e spare parts ITEM PART NUMBER DESCRIPTION PG350 3212030 TOOREST ARM 3212040 TOOLREST 3212050 INNER FLANGE 3214440 OUTER FLANGE 3225170 BELT DRIVE 3211100 INNER GUARD RH 3211110 INNER GUARD LH 3215040 GRINDING WHEEL 350x50x31 75 A46 3215050 GRINDING WHEEL 350x50x31 75 A26 3215160 REDUCER BUSH 50 8mm 31 75mm ...

Page 15: ... SPECIFIED DIMENSIONS ARE IN MILLIMETERS SURFACE FINISH TOLERANCES LINEAR ANGULAR MATERIAL DO NOT SCALE DRAWING REVISION TITLE DWG NO SCALE 1 10 SHEET 1 OF 1 A3 WEIGHT PG350 01 PG350 MAIN DIMENSIONS BROBO GROUP Address 8 Fowler Rd Dandenong VIC 3175 https brobo com au 13 08 2020 0 DRAWN DATE ANH ALL RIGHTS RESERVED THIS DRAWING MAY NOT BE REPRODUCED OR TRANSMITTED IN ANY FORM OR BY ANY MEANS IN PA...

Page 16: ...6 4 31 3213100R End Plate RHS 1 32 3211100 PG Inner Guard RHS 1 33 8705870 Spring Washer M12 4 34 3212030 PG Toolrest Arm 2 35 3212040 PG Toolrest 2 36 8725710 Flat Washer Over Size 12x30x3 4 37 8725480 Socket Head Cap Screw M12x50 4 38 3222010 PG Pedestal Casting 1 39 3223080 PG Pedestal Cover Plate 1 40 3835250 Start Button 1 ITEM NO PART NUMBER DESCRIPTION QTY 41 9935470 Stop E Stop Push Button...

Page 17: ...IN SUPPLY CABLE 2 2m LENGTH ORANGE 1 17 START PUSH BUTTON ASSEMBLY 1 18 STOP PUSH BUTTON ASSEMBLY 1 19 1 5mm2 BOOT LACE PINS 10 20 4 NON INSULATED EYELET 3 21 5 NON INSULATED EYELET 2 22 SINGLE CORE 1 0mm2 BLUE 70mm LENGTH 1 23 SINGLE CORE 1 0mm2 BLACK 50mm LENGTH 1 24 SINGLE CORE 1 0mm2 BROWN 300mm LENGTH 1 25 PLASTIC 16mm ELBOW ADAPTOR 1 26 M20 16 METAL REDUCER 1 27 M20 METAL NUT 1 28 PLASTIC 16...

Page 18: ...FINISH TOLERANCES LINEAR ANGULAR MATERIAL DO NOT SCALE DRAWING REVISION TITLE DWG NO SCALE 1 2 SHEET 2 OF 2 A3 WEIGHT E1904 PG C01 PG SWITCH COMPONENTS BROBO GROUP Address 8 Fowler Rd Dandenong VIC 3175 https brobo com au 21 02 2019 0 DRAWN DATE ANH ALL RIGHTS RESERVED THIS DRAWING MAY NOT BE REPRODUCED OR TRANSMITTED IN ANY FORM OR BY ANY MEANS IN PART OR IN WHOLE WITHOUT THE WRITTEN PERMISSION O...

Page 19: ......

Page 20: ...ASE OR 3 PHASE CIRCUIT ISOLATOR OPTIONAL 2 UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN MILLIMETERS SURFACE FINISH TOLERANCES LINEAR ANGULAR MATERIAL DO NOT SCALE DRAWING REVISION TITLE DWG NO SCALE 1 2 SHEET 1 OF 1 A3 WEIGHT E2017 0331 ISOLATOR SCHEMATIC BROBO GROUP Address 8 Fowler Rd Dandenong VIC 3175 https brobo com au 08 07 2020 0 DRAWN DATE ANH ALL RIGHTS RESERVED THIS DRAWING MAY NOT BE RE...

Page 21: ...ain components of the machine o Grade of buffing mops or grit on the grinding wheel o Correct working parameters for the type of material being ground Verify that the quality of the ground material meets the requirements that the final product is free from any machining defects 5 2 Maintenance Requirements All maintenance must be carried out with the power switched off the machine in emergency sto...

Page 22: ...vania No 1 grease or equivalent 3 Check that the clamping nut counter plate regularly to ensure it s in good condition Do not over tighten the nut counter plate as this will inadvertently exert tension on the spindle grinding wheel 4 Clean lubricate any moving joints or sliding surfaces with good quality oil 5 Clean the grinding machine regularly keep any unpainted surfaces lightly oiled to protec...

Page 23: ...ng wheel Clogged or worn grinding wheel Incorrect grade of grit on grinding wheel for parent material Broken or worn component The electrical component is worn Verify that the correct grade of grinding is suited for the parent material being ground Reduce the feed rate onto the grinder else it might cause the parent material to break cause harm to the operator Do not abruptly force the parent mate...

Page 24: ...aken The power source is to be isolated prior to opening electrical enclosures Noise Low Under no load testing the noise level measured is below 80db A If the noise level becomes too high during a grinding cycle stop the process inspect for the problem if any are present Substance Low Keep the work area clean regularly remove excess coolant oils another aggregate Hazardous Events Unexpected Start ...

Reviews: